CN106255092A - The method and apparatus determining source SGSN - Google Patents
The method and apparatus determining source SGSN Download PDFInfo
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- CN106255092A CN106255092A CN201610820796.4A CN201610820796A CN106255092A CN 106255092 A CN106255092 A CN 106255092A CN 201610820796 A CN201610820796 A CN 201610820796A CN 106255092 A CN106255092 A CN 106255092A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/08—Mobility data transfer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W8/06—Registration at serving network Location Register, VLR or user mobility server
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/26—Network addressing or numbering for mobility support
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0022—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies
- H04W36/00224—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]
- H04W36/00226—Control or signalling for completing the hand-off for data sessions of end-to-end connection for transferring data sessions between adjacent core network technologies between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB] wherein the core network technologies comprise IP multimedia system [IMS], e.g. single radio voice call continuity [SRVCC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0064—Transmission or use of information for re-establishing the radio link of control information between different access points
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/12—Reselecting a serving backbone network switching or routing node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
- H04W60/005—Multiple registrations, e.g. multihoming
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Abstract
Embodiments provide a kind of method and apparatus determining source SGSN.Wherein it is determined that the method for source SGSN, including: the NAS message sent by UE obtains the addressing information of source SGSN；The addressing information of described source SGSN is sent to target MME or target SGSN, in order to target MME or target SGSN determine source SGSN according to the addressing information of described source SGSN.The embodiment of the present invention can ensure that MSC gets the addressing information of source SGSN up-to-date for UE, in order to target MME or target SGSN obtain the preparation carrying information of UE from correct source SGSN.
Description
Technical field
The present embodiments relate to the communications field, and more particularly, to determining source GPRS (general packet radio service)
(GPRS, General Packet Radio Service) serving GPRS support node (SGSN, Serving GPRS Support
Node) method and apparatus.
Background technology
In the prior art, subscriber equipment (User Equipment, UE) is sending Routing Area Update (Routing Area
Update, RAU) request message initial direct-sending message in report network resource identification (Network Resource
Identifier, NRI) give radio network controller (Radio Network Controller, RNC), then by RNC by Route Area
Domain identifier (Routing Area Identifier, RAI) and NRI report mobile switching centre (Mobile Switching
Center, MSC), finally it is sent to target mobility management entity (Mobility Management Entity, MME) by MSC
Or target SGSN, in order to target MME or target SGSN determine the source SGSN at UE place according to RAI Yu NRI and obtain UE in this source
Context on SGSN.
Reverse injection frequency language seriality (Reverse Single Radio Voice Call is initiated at RNC
Continuity, SRVCC) switching (i.e. from circuit commutative field (Circuit Switched Domain, CS territory) be switched to packet
During switching domain (Packet Switched Domain, PS territory), generally in migration request (Relocation Required) message
Middle RAI Yu NRI reported by UE is sent to MSC.Wherein, in reverse SRVCC handoff procedure, target MME or target SGSN to
The SGSN at UE place obtains the context of UE.
It is said that in general, the addressing information of SGSN can use RAI FQDN structure, i.e.<NRI>.<RAC>.<LAC>.<MNC
>.<MCC>.3gppnetwork.org.Visible, this addressing information comprises RAI Yu NRI etc., thus target MME or target SGSN can
To be connected to the source SGSN at UE place by above-mentioned addressing information.Wherein, RAI is by Mobile Country Code MCC (Mobile Country
Code, MCC), Mobile Network Code (Mobile Netowrk Code, MNC), location area code (Location Area Code,
LAC) form with Routing Area code (Routing Area Code, RAC).
But, UE is after initiating CS calling (such as audio call), if UE supports reverse SRVCC switching, then UE can send out at RNC
RAU process is initiated so that RNC can obtain UE from initial direct-sending message (such as RAU asks message) when playing reverse SRVCC switching
NRI, ensure that the RAI of the community at RAI with the UE place of UE is consistent simultaneously.When RNC initiates reverse SRVCC switching,
Migration request message is carried RAI Yu NRI and issues MSC, then issued target MME or target SGSN by MSC.When RNC can not be with source
SGSN is connected, so RNC can reselect a new SGSN, so the NRI that UE reports is invalid.If UE is in CS connected state,
If UE occurs after the switching of RNC, even if UE initiates RAU process after handover, disappear with up direct transfer (Direct Transfer)
Breath sends RAU and asks message, it is ensured that the RAI of the community at RAI with the UE place of UE is consistent., up direct-sending message is not
Comprising NRI, when the SGSN at UE place changes, RNC still cannot get the addressing information of new source SGSN.
Or, when UE is in PS connected state, if after there is the switching of SGSN-spanning in UE, if RAI changes, at RNC
In the case of not notifying new RAI to UE, RNC cannot obtain the RAI of the source SGSN at UE place after switching.Even if RNC is by RAI
The notice that changes is to UE, because RAI changes, UE can initiate RAU process after receiving above-mentioned notice so that UE obtains new
RAI., when now the SGSN at UE place changes, UE uses up direct-sending message to send RAU request, and this message is not carried
NRI, even if carrying NRI, however it remains RNC can not choose the situation of the SGSN of NRI instruction, i.e. NRI changes, therefore
RNC still cannot get the addressing information of new source SGSN.
Summary of the invention
The embodiment of the present invention provides a kind of method and apparatus determining source SGSN, it is possible to solve the SGSN change at UE place
Time, the problem how target MME or target SGSN determine source SGSN.
On the one hand, it is provided that a kind of method determining source SGSN, including the Non-Access Stratum (Non sent by UE
Access Stratum) NAS message obtain source SGSN addressing information；The addressing information of source SGSN is sent to target MME or
Target SGSN, in order to target MME or target SGSN determine source SGSN according to the addressing information of source SGSN.
On the other hand, it is provided that a kind of method determining source SGSN, including: by RNC obtain source SGSN addressing information；
The addressing information of source SGSN is sent to target MME or target SGSN, in order to target MME or target SGSN seeking according to source SGSN
Location information determines source SGSN.
Another further aspect, it is provided that a kind of method determining source SGSN, including: obtain the addressing information of source SGSN；Pass through NAS
The addressing information of source SGSN is sent to MSC by message；Or pass through direct-sending message or cell update message by the addressing of source SGSN
Information is sent to RNC.
Another aspect, it is provided that a kind of method determining source SGSN, including: receive the addressing information of source SGSN；By described
The addressing information of source SGSN is sent to MSC.
On the one hand, it is provided that a kind of device determining source SGSN, including: the first acquiring unit, for sent by UE
NAS message obtains the addressing information of source SGSN；Transmitting element, for being sent to target MME by the addressing information of described source SGSN
Or target SGSN, in order to target MME or target SGSN determine source SGSN according to the addressing information of described source SGSN.
On the other hand, it is provided that a kind of device determining source SGSN, including: second acquisition unit, for being obtained by RNC
The addressing information of source SGSN；Transmitting element, for the addressing information of described source SGSN is sent to target MME or target SGSN,
So that target MME or target SGSN determine source SGSN according to the addressing information of described source SGSN.
Another further aspect, it is provided that a kind of device determining source SGSN, including: the 3rd acquiring unit, it is used for obtaining source SGSN
Addressing information；Second transmitting element, for being sent to MSC by NAS message by the addressing information of source SGSN；Or by straight
Pass message or the addressing information of source SGSN is sent to RNC by cell update message.
Another aspect, it is provided that a kind of device determining source SGSN, including: second receives unit, is used for receiving source SGSN
Addressing information；3rd transmitting element, for being sent to MSC by the addressing information of described source SGSN.
When the embodiment of the present invention can be guaranteed in the SGSN change at UE place, target MME or target SGSN may determine that source
SGSN。
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be in embodiment or description of the prior art
The required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only some realities of the present invention
Execute example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to these accompanying drawings
Obtain other accompanying drawing.
Fig. 1 is the flow chart of the method for determination source SGSN according to embodiments of the present invention.
Fig. 2 is the flow chart of the method for determination source SGSN according to embodiments of the present invention.
Fig. 3 is the flow chart of the method for determination source SGSN according to embodiments of the present invention.
Fig. 4 is the flow chart of the method for determination source SGSN according to embodiments of the present invention.
Fig. 5 is the structural representation of the device of determination source SGSN according to embodiments of the present invention.
Fig. 6 is the structural representation of the device of determination source SGSN according to embodiments of the present invention.
Fig. 7 is the structural representation of the device of determination source SGSN according to embodiments of the present invention.
Fig. 8 is the structural representation of the device of determination source SGSN according to embodiments of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is a part of embodiment of the present invention rather than whole embodiments wholely.Based on this
Embodiment in bright, the every other enforcement that those of ordinary skill in the art are obtained under not making creative work premise
Example, broadly falls into the scope of protection of the invention.
Technical scheme, can apply to various communication system, such as: GSM, CDMA (CDMA, Code
Division Multiple Access) system, WCDMA (WCDMA, Wideband Code Division
Multiple Access Wireless), GPRS (general packet radio service) (GPRS, General Packet Radio
Service), Long Term Evolution (LTE, Long Term Evolution) etc..
Subscriber equipment (UE, User Equipment), it is possible to be referred to as mobile terminal (Mobile Terminal), move
Subscriber equipmenies etc., can be through wireless access network (such as, RAN, Radio Access Network) and one or more core net
Communicating, subscriber equipment can be mobile terminal, such as mobile phone (or be referred to as " honeycomb " phone) with have mobile terminal
Computer, for example, it may be mobile device portable, pocket, hand-held, built-in computer or vehicle-mounted, they with
Wireless access network exchange language and/or data.
Base station, can be the base station (BTS, Base Transceiver Station) in GSM or CDMA, it is also possible to be
Base station (NodeB) in WCDMA, it is also possible to be evolved base station (eNB or e-NodeB, the evolutional Node in LTE
B), the present invention does not limit, but for convenience of description, following embodiment illustrates as a example by Node B.
Method below in conjunction with accompanying drawing description determination source SGSN according to embodiments of the present invention.Source SGSN alleged below
Addressing information can be at least one in following information: NRI (or packet domain user temporary identifier (Packet-
Temporary Mobile Subscriber Identity, P-TMSI), RAI (or RAC), global core network mark know (Global
Or source SGSN is at the Internet protocol (Internet Protocol, IP) of core net (Core Netowrk, CN) CN-ID)
Location).
Source SGSN refers to the SGSN at the context place of UE.Such as, after SGSN-spanning switches, target SGSN becomes the source of UE
SGSN.Target SGSN is typically target SGSN of switching, before now on UE, the addressing information of the source SGSN of storage is still for switching
The addressing information of SGSN.
In FIG, MSC side according to embodiments of the present invention determines that the method for source SGSN can be as described below.
The addressing information of 11, the MSC NAS message acquisition source SGSN sent by UE.
Generally, UE in CS call establishment, CS call setup complete after or after movement occur SGSN change after, UE
Can be with the addressing information of active reporting source SGSN.
Now, UE can carry the addressing information of the source SGSN at UE place to MSC in NAS message, such as can pass through
The message such as service request (Service Request) carry the addressing information of source SGSN to MSC.
The addressing information of the source SGSN at its place can be obtained due to UE always, therefore consider after UE is moved, i.e. UE
In the case of the SGSN at place changes, directly by UE by NAS message by the addressing information of the source SGSN at UE place actively
Report MSC, then be sent to target MME or target SGSN by MSC.When MSC only receives RAC, MSC can with the LAI in CS territory and
This RAC forms RAI, more sent along with NRI (or P-TMSI) to target MME or target SGSN.Further, UE can be according to P-
One or more SGSN of determination in TMSI change, NRI change, RAI change change.
Optionally, before the NAS message sent by UE obtains the addressing information of source SGSN, MSC can also ask UE
Report the addressing information of source SGSN.
Generally, reverse SRVCC handover request or SRVCC preparation handover request are received or in CS call setup mistake at MSC
After Cheng Zhong or CS call setup completes or after SGSN switches, MSC actively can obtain the addressing of source SGSN to UE
Information.
Such as, when RNC initiates reverse SRVCC switching, i.e. receive, as MSC, the reverse SRVCC handover request that RNC sends
Time, or when MSC receives the reverse handover preparation request that RNC sends, or (included before RNC initiates reverse SRVCC switching
In CS call establishment, CS call setup complete after or after switching), MSC sends the request of SGSN information reporting to UE, please
UE is asked to pass through NAS message by the addressing information active reporting of the SGSN at UE place to MSC.
The addressing information of source SGSN is sent to target MME or target SGSN by 12, MSC, in order to target MME or target SGSN
Addressing information according to this source SGSN determines source SGSN.
From the foregoing, it will be observed that the method for determination source SGSN according to embodiments of the present invention can to ensure that MSC gets UE up-to-date
The addressing information of source SGSN, in order to target MME or target SGSN obtain the preparation carrying information of UE from correct source SGSN.
The foregoing describe how MSC directly obtains the Datagram mode of source SGSN at UE, below in conjunction with 2 kinds of fields
How scape analyzes MSC by the Datagram mode of RNC acquisition source SGSN.Addressing information acquired in RNC can be NRI
Or P-TMSI, it is also possible to it is NRI (or P-TMSI) and RAI (or RAC).RNC needs to know the voice bearer information place of UE
The addressing information of source SGSN, then notifies to MSC, preserves or update the addressing information of source SGSN after MSC receives, will notice
MME so that MME can get PDP Context from source SGSN.
As in figure 2 it is shown, the method that MSC side according to embodiments of the present invention determines source SGSN can be as described below.
21, MSC obtain the addressing information of source SGSN by RNC.
I.e., first obtained the addressing information of source SGSN by RNC, then MSC receives the addressing letter of the source SGSN that RNC sends again
Breath.
Wherein the Datagram mode of RNC acquisition source SGSN includes following several: RNC receives target SGSN and migrating
The addressing information of target SGSN carried by migration request message in journey；Or RNC receives source SGSN and passes through public identifier
The addressing information of the source SGSN that (Common ID) or direct-sending message carry；Or RNC receives UE by up direct-sending message or little
The addressing information of the source SGSN that district's more new information carries；Or RNC is being to set up after the signaling of UE is connected from this locality with SGSN
SGSN information table gets the addressing information of source SGSN；Or UE carries the addressing information of source SGSN from initial direct-sending message.
Wherein, UE carries the addressing information of source SGSN from initial direct-sending message, specifically refers to seek except the core net in portability CS territory
Outside the information of location, also allow for carrying the SGSN addressing information in PS territory.
Specifically, RNC, when initiating reverse SRVCC switching, migrates (Relocation Required) message in request
In carry the addressing information of source SGSN to MSC.Or, when RNC receives the addressing information of initial SGSN that UE sends, from switching
After SGSN get UE the SGSN belonging to current context addressing information or RNC and SGSN be UE set up connect after
It is immediately issued to MSC after SGSN gets the addressing information of current SGSN.
The addressing information of source SGSN is sent to target MME or target SGSN by 22, MSC, in order to target MME or target SGSN
Addressing information according to this source SGSN determines source SGSN.
From the foregoing, it will be observed that the method for determination source SGSN according to embodiments of the present invention can to ensure that MSC gets UE up-to-date
The addressing information of source SGSN, in order to target MME or target SGSN obtain the preparation carrying information of UE from correct source SGSN.
Scene one: UE initiates CS calling
UE sends NAS message to network by initial direct-sending message or up direct-sending message, now initial direct-sending or on
The RRC information that row direct transfers is carried the addressing information of the source SGSN at UE place.
Such as, when UE initiates CS calling, UE is sent to RNC by initial direct-sending message；Or, set up CS calling at UE
After, UE is sent to RNC by up direct-sending message.Wherein, at the Access Layer (Access Stratum, AS) of carrying NAS message
Message (such as, initial direct-sending or the up RRC information direct transferred) is carried the addressing information of the source SGSN at UE place.
Such as, UE is after CS call setup, and when UE and source SGSN sets up signaling connection, source SGSN is at descending direct-sending message
Or the Radio Access Network Application Part (Radio Access Network Application Part, RANAP) such as public identifier
Message is carried the addressing information of source SGSN.UE can ask by initiating RAU or attachment (Attach) is asked or bag data
Agreement (Packet Data Protocol, PDP) activation request etc. is set up signaling with source SGSN and is connected.If it should be noted that
If UE without initiating NAS message, can force UE to initiate RAU process after CS call setup here.
Scene two: UE moves generation RAU process or RNC migrates
UE is after CS call setup, and UE is in PS Idle state, if UE occurred when RNC switches, source RNC can be at handoff procedure
The addressing information of middle transmission source SGSN is to Target RNC.Such as by strengthen handover request message or source RNC to Target RNC
Transparent vessel in be carried to Target RNC.After handover, if the SGSN of UE is not changed in, RNC is continuing with source RNC and sends
Addressing information to source SGSN.
If after switching across RNC, UE initiates RAU process, and UE sends RAU by initial direct-sending message to Target RNC and asks,
Target RNC by up direct-sending message send RAU ask, target SGSN receive Target RNC provide initial UE message it
After, by public identifier, the addressing information of SGSN is sent to Target RNC.Then, SGSN SGSN before switching in source successfully obtains
Take the context of UE, send RAU and accept message to UE.SGSN can disappear descending the direct transferring of RANAP sending RAU acceptance (accept)
The addressing information of source SGSN is sent to Target RNC by breath, or source SGSN confirmed after RAU completes again by descending directly
Pass message and the addressing information of source SGSN is sent to Target RNC, or after RNC and source SGSN sets up the connection of UE, RNC is from this
Ground SGSN information table gets the addressing information of source SGSN.The Target RNC addressing information of this source SGSN is updated.
Optionally, UE is forced to initiate RAU process after handover so that RNC and the SGSN being subject to variation sets up and connects so that
Source SGSN after change can issue addressing information to Target RNC.
When UE is after Target RNC receives the descending direct-sending message that RAU accepts, RAU will be sent by up direct-sending message
Process completes to source SGSN, can carry new source SGSN addressing information so that RNC is in migration request in this up direct-sending message
Message is carried to MSC.
There is the switching of SGSN-spanning in scene two: UE
If UE is in PS connected state, if there is SGSN-spanning switching, Target RNC SGSN after switching gets up-to-date seeking
The addressing of up-to-date source SGSN is believed by location information, i.e. target SGSN by the RANAP message such as migration request message or direct-sending message
Breath is handed down to RNC.Specifically, the addressing of up-to-date SGSN is believed in handoff procedure by target SGSN by migration request message
Breath is handed down to RNC, or the addressing information of up-to-date source SGSN is handed down to by SGSN after the handover procedure by direct-sending message
RNC。
Scene three: UE initiates cell updating course
When UE carries out cell reselection, triggering cell renewal process after cell reselection.UE carries in cell update message
The information of source SGSN, Target RNC is sent to source RNC (Serving RNC) after receiving, source RNC issues MSC in handover request.Now,
MSC need not initiate the process of acquisition source SGSN information to UE again.Directly use from the source SGSN information that RNC receives, reversely
Handover request switching message Hu always carries source SGSN information to target PS core net node, continues follow-up reverse handoff procedure.
Optionally, when UE determine support reverse SRVCC switching capability, may initiate reversely to switch time or UE in radio chains
In cell update message, the information of source SGSN is just carried after the failure of road.Further, UE determines before cell updating course
Use CS voice.
Optionally, in handover request message, the information of source SGSN is just carried when source RNC determines and to initiate reversely to switch.
The scene of triggering cell gravity treatment: after there is Radio Link Failure, or at cell forward access channel CELL_FACH
State carries out cell reselection.
By the method for scene three, can solve at UE in the reverse handoff procedure that cell update triggers, MSC can not lead to
Cross the NAS message request Datagram information of UE transmission source SGSN.Because before receiving cell update confirmation, carrying NAS disappears
The signaling bear of breath is also not set up, so NAS message cannot be received.
By above method, after RNC obtains the addressing information of up-to-date source SGSN, this addressing information is notified by RNC
To MSC.
Such as, RNC can carry up-to-date source SGSN's when initiating reverse SRVCC switching in migration request message
Addressing information is to MSC.The most such as, when RNC receives the addressing information of the initial source SGSN that UE sends, or from new source
After SGSN gets the addressing information of up-to-date source SGSN of UE, RNC carries seeking of up-to-date source SGSN in direct-sending message
Location information is sent to MSC.
It can be that the information received from SGSN or UE and local information are carried out group that RNC is carried to the addressing information of MSC
Conjunction processes or extracts.
When MSC receives the addressing information of the up-to-date source SGSN that RNC sends, then it is updated to the addressing letter of up-to-date source SGSN
Breath.
By foregoing, UE side according to embodiments of the present invention can be summarized and method that RNC side determines source SGSN.
In figure 3, UE side according to embodiments of the present invention determines that the method for source SGSN is as described below.
31, the UE addressing informations obtaining source SGSN.
Alternatively, before obtaining the addressing information of source SGSN, UE receives the addressing information of transmission source SGSN that MSC sends
Report request.
The addressing information of source SGSN is sent to MSC by NAS message by 32, UE；Or by direct-sending message or community more
The addressing information of source SGSN is sent to RNC by new information.
In the diagram, RNC side according to embodiments of the present invention determines that the method for source SGSN includes:
41, the RNC addressing informations obtaining source SGSN.
Specifically, Target RNC receives the target that target SGSN is carried in transition process by migration request message
The addressing information of SGSN；Or receive the addressing information of the source SGSN that target SGSN is carried by public identifier or direct-sending message；
Or receive the addressing information of the source SGSN that UE is carried by direct-sending message or cell update message.
When UE cell update message trigger sends the instruction of up signalling across RNC transition process, Target RNC to source RNC
Message is given to source RNC the cell update message received.When source RNC determines to initiate reversely to switch, the source SGSN received
Addressing information be placed in migration request message and issue MSC.Optionally, after Target RNC receives cell update message, take out source
The addressing information of SGSN, issues source RNC in up signalling instruction message.
The addressing information of source SGSN is sent to MSC by 42, RNC.
Such as, the addressing information of the source SGSN that RNC is carried by migration request message or direct-sending message is sent to MSC.By
Knowable to upper, the method for determination source SGSN according to embodiments of the present invention can ensure that MSC gets seeking of source SGSN up-to-date for UE
Location information, in order to target MME or target SGSN obtain the preparation carrying information of UE from correct source SGSN.
The scheme that above-mentioned MSC is obtained from UE can with obtain the Datagram scheme of source SGSN from RNC can be in conjunction with
Use.Such as UE first passes through NAS message and reports MSC, and after the SGSN belonging to UE changes, UE or RNC is by after change
SGSN addressing information reports MSC again.
Device below with reference to Fig. 5 to Fig. 8 description determination source SGSN according to embodiments of the present invention.
As it is shown in figure 5, determine that the device 50 of source SGSN includes first acquiring unit the 51, first transmitting element 52.Wherein,
One acquiring unit 51 obtains the addressing information of source SGSN for the NAS message sent by UE, and the first transmitting element 52 is used for will
The addressing information of described source SGSN is sent to target MME or target SGSN, in order to target MME or target SGSN are according to described source
The addressing information of SGSN determines source SGSN.
Optionally it is determined that the device 50 of source SGSN can also include the first request unit 53, it is for sending by UE
NAS message obtain source SGSN addressing information before, request UE send described source SGSN addressing information.
As shown in Figure 6, determine that the device 60 of source SGSN includes second acquisition unit 61 and the first transmitting element 62.Wherein,
Second acquisition unit 61 for obtaining the addressing information of source SGSN by RNC.Further, second acquisition unit 61 can be used for connecing
Receive the addressing information of the source SGSN that RNC is carried by migration request message or direct-sending message.First transmitting element 62 is for by institute
The addressing information stating source SGSN is sent to target MME or target SGSN, in order to target MME or target SGSN are according to described source SGSN
Addressing information determine source SGSN.
As it is shown in fig. 7, determine that the device 70 of source SGSN includes the 3rd acquiring unit 71 and the second transmitting element 72.Wherein,
3rd acquiring unit 71 is for obtaining the addressing information of source SGSN.Second transmitting element 72 is used for source SGSN by NAS message
Addressing information be sent to MSC；Or by direct-sending message or cell update message, the addressing information of source SGSN is sent to
RNC。
Optionally it is determined that the device 70 of source SGSN can also include the first reception unit 73, for obtaining source SGSN's
Before addressing information, the Datagram of transmission source SGSN receiving MSC transmission reports request.
As shown in Figure 8, determine that the device 80 of source SGSN includes the second reception unit 81 and the 3rd transmitting element 82.Wherein,
Second receives unit 81 for receiving the addressing information of source SGSN.Further, the second reception unit 81 may be used for receiving mesh
The addressing information of target SGSN that mark SGSN is carried by migration request message in transition process；Or receive source SGSN to pass through
The addressing information of the source SGSN that public identifier or direct-sending message carry；Or receive UE by direct-sending message or cell update message
The addressing information of the source SGSN carried.
3rd transmitting element 82 is for being sent to MSC by the addressing information of described source SGSN.Further, the 3rd list is sent
The addressing information of source SGSN that unit 82 may be used for being carried by migration request message or direct-sending message is sent to MSC.
Wherein it is determined that the device 50 or 60 of source SGSN can be MSC, determine that the device 60 of source SGSN can be UE, determine
The device 70 of source SGSN can be RNC.
From the foregoing, it will be observed that the device of determination source SGSN according to embodiments of the present invention can to ensure that MSC gets UE up-to-date
The addressing information of source SGSN, in order to target MME or target SGSN obtain the preparation carrying information of UE from correct source SGSN.
Those of ordinary skill in the art are it is to be appreciated that combine the list of each example that the embodiments described herein describes
Unit and algorithm steps, it is possible to being implemented in combination in of electronic hardware or computer software and electronic hardware.These functions are actually
Perform with hardware or software mode, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel
Each specifically should being used for can be used different methods to realize described function, but this realization is it is not considered that exceed
The scope of the present invention.
Those skilled in the art is it can be understood that arrive, for convenience and simplicity of description, the system of foregoing description,
The specific works process of device and unit, is referred to the corresponding process in preceding method embodiment, does not repeats them here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method, permissible
Realize by another way.Such as, device embodiment described above is only schematically, such as, and described unit
Dividing, be only a kind of logic function and divide, actual can have other dividing mode, the most multiple unit or assembly when realizing
Can in conjunction with or be desirably integrated into another system, or some features can be ignored, or does not performs.Another point, shown or
The coupling each other discussed or direct-coupling or communication connection can be the indirect couplings by some interfaces, device or unit
Close or communication connection, can be electrical, machinery or other form.
The described unit illustrated as separating component can be or may not be physically separate, shows as unit
The parts shown can be or may not be physical location, i.e. may be located at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected according to the actual needs to realize the mesh of the present embodiment scheme
's.
It addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to two or more unit are integrated in a unit.
If described function is using the form realization of SFU software functional unit and as independent production marketing or use, permissible
It is stored in a computer read/write memory medium.Based on such understanding, technical scheme is the most in other words
The part contributing prior art or the part of this technical scheme can embody with the form of software product, this meter
Calculation machine software product is stored in a storage medium, including some instructions with so that a computer equipment (can be individual
People's computer, server, or the network equipment etc.) or processor (processor) perform side described in each embodiment of the present invention
All or part of step of method.And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with scope of the claims.
Claims (16)
1. the method determining source GPRS (general packet radio service) serving GPRS support node SGSN, it is characterised in that including:
The non access stratum NAS message sent by user equipment (UE) obtains the addressing information of source SGSN；
The addressing information of described source SGSN is sent to target mobility management entity MME or target SGSN, described source SGSN's
Addressing information is used for determining described source SGSN.
Method the most according to claim 1, it is characterised in that obtain source SGSN in the described NAS message sent by UE
Addressing information before, also include:
Described UE is asked to send the addressing information of described source SGSN.
Method the most according to claim 1 and 2, it is characterised in that the addressing information of described source SGSN include following in
One or more: network resource identifier NRI, packet domain user temporary identifier P-TMSI, Tracking Area Identifier RAI, Route Area
Territory code RAC and global core network mark are known.
4. the method determining source GPRS (general packet radio service) serving GPRS support node SGSN, it is characterised in that including:
The addressing information of acquisition source SGSN；
By non access stratum NAS message, the addressing information of described source SGSN is sent to moving exchanging center MSC.
Method the most according to claim 4, it is characterised in that before the addressing information of described acquisition source SGSN, also wrap
Include:
Receive described MSC send report request, described in report request for the addressing information asking to send described source SGSN.
6. according to the method described in claim 4 or 5, it is characterised in that the addressing information of described source SGSN includes following information
In at least one: network resource identifier NRI, packet domain user temporary identifier P-TMSI, Tracking Area Identifier RAI, route
Region code RAC and global core network mark are known.
7. the device determining source GPRS (general packet radio service) serving GPRS support node SGSN, it is characterised in that including:
First acquiring unit, the non access stratum NAS message for being sent by user equipment (UE) obtains the addressing information of source SGSN；
First transmitting element, for being sent to target mobility management entity MME or target by the addressing information of described source SGSN
SGSN, the addressing information of described source SGSN is used for determining source SGSN.
Device the most according to claim 7, it is characterised in that also include:
First request unit, before obtain the addressing information of source SGSN in the NAS message sent by UE, asks described UE
Send the addressing information of described source SGSN.
9. according to the device described in claim 7 or 8, it is characterised in that the addressing information of described source SGSN include following in
One or more: network resource identifier NRI, packet domain user temporary identifier P-TMSI, Tracking Area Identifier RAI, Route Area
Territory code RAC and global core network mark are known.
10. the device determining source GPRS (general packet radio service) serving GPRS support node SGSN, it is characterised in that including:
3rd acquiring unit, for obtaining the addressing information of source SGSN；
Second transmitting element, for being sent to mobile switch by non access stratum NAS message by the addressing information of described source SGSN
Center MSC.
11. devices according to claim 10, it is characterised in that also include:
First receives unit, and for before obtaining the addressing information of source SGSN, receive described MSC transmission reports request, institute
State and report request for the addressing information asking to send described source SGSN.
12. according to the device described in claim 10 or 11, it is characterised in that the addressing information of described source SGSN includes following letter
At least one in breath: network resource identifier NRI, packet domain user temporary identifier P-TMSI, Tracking Area Identifier RAI, road
Known by region code RAC and global core network mark.
13. 1 kinds of systems determining source GPRS (general packet radio service) serving GPRS support node SGSN, it is characterised in that including: user
Equipment UE and moving exchanging center MSC,
Described UE is for obtaining the addressing information of source SGSN, and the addressing of described source SGSN is believed by non access stratum NAS message
Breath is sent to described MSC；
Described MSC is for being sent to target mobility management entity MME or target SGSN, institute by the addressing information of described source SGSN
State the addressing information of source SGSN for determining described source SGSN.
14. systems according to claim 13, it is characterised in that described MSC is additionally operable to ask described UE to send described source
The addressing information of SGSN.
15. according to the system described in claim 13 or 14, it is characterised in that described system also includes described target MME or institute
State target SGSN, described target MME or described target SGSN for determining described source according to the addressing information of described source SGSN
SGSN。
16. according to the system according to any one of claim 13-15, it is characterised in that the addressing information bag of described source SGSN
Include following in one or more: network resource identifier NRI, packet domain user temporary identifier P-TMSI, Tracking Area Identifier
RAI, Routing Area code RAC and global core network mark are known.
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| CN201210337796.0A CN103297948B (en) | 2012-02-24 | 2012-09-13 | The method and apparatus determining source SGSN |
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| CN106255092B (en) * | 2012-02-24 | 2020-06-26 | 华为技术有限公司 | Method and device for determining source SGSN |
| CN105848132A (en) * | 2015-01-15 | 2016-08-10 | 中兴通讯股份有限公司 | Method for realizing position update and mobility management unit |
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| CN103297948A (en) | 2013-09-11 |
| WO2013123783A1 (en) | 2013-08-29 |
| EP2819442A1 (en) | 2014-12-31 |
| EP2819442B1 (en) | 2017-05-03 |
| US9532277B2 (en) | 2016-12-27 |
| CN106255092B (en) | 2020-06-26 |
| EP2819442A4 (en) | 2015-04-01 |
| US20140362827A1 (en) | 2014-12-11 |
| CN103297948B (en) | 2016-12-21 |
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